Speedwedge has released a nice iPhone app called IOD calc to aid in computing the various numbers needed for stereoscopic photography and video, including focal lengths, interocular distance, and more.
– Calculates the inter-ocular distance needed for each camera setup based on measurements from set.
– The sliders are logarithmic so you get finer control at the short end.
– Suitable for Motion Picture and Stills work, Film or Electronic cameras.
– Best of all it’s fast and intuitive.The IOD Calc is an essential tool for film-makers taking on the latest 3D revolution. IOD Calc features include:
– Handy sliders and nudge buttons to set the distances to the nearest and farthest objects in the scene, as well as the desired convergence point – whether or not you converge in camera or post.
– Computes roundness factor so you can match the apparent depth from shot to shot even when changing lenses and setup.
– Calculates the foreground and background divergences as percentages and actual distances for your chosen screen size and limits the background divergence to prevent hyper infinities.
– Operates in metric and imperial.
It’s a bit pricey at $60, but probably one of the more functional and “professional grade” apps out for this function.
